>>reporter: this is beginning to translate into a big business opportunity, with adventure sports companies mushrooming across the country. 220 kilometres north of new delhi is rishikesh; a popular spot for an adrenaline soaked spot of white water rafting. >>you are just 4-5 hours away from delhi, so close to it, but still you feel you are so away from it. it's another world >>many local people have joined this industry. the rafts have become cheaper, and the government offers many subsidies and cheap loans. that's why the prices we charge customers have fallen too. >>reporter: hardcore enthusiasts are adding and promoting new competitive events every year. at the bangalore adventure race, competitors combined cycling with rock climbing to push the limits of endurance. >>we're about 5 hours into the re, d we're at the bouldering area. and this is one of the most difficult part of the race today. the participants have already cycled 50 kilometres, and 12 kilometres of very, very technical trail. they're cramping, and they can't lift their legs, and their arms are tired. >>this is my first ad